netdev - [PATCH net-next 3/8] net: phy: dp83640: add HW timestamp configuration reporting

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Message-ID: <20251112000257.1079049-4-vadim.fedorenko@linux.dev>
Date: Wed, 12 Nov 2025 00:02:52 +0000
From: Vadim Fedorenko <vadim.fedorenko@...ux.dev>
To: Andrew Lunn <andrew+netdev@...n.ch>,
	Florian Fainelli <florian.fainelli@...adcom.com>,
	Russell King <linux@...linux.org.uk>,
	Heiner Kallweit <hkallweit1@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Andrei Botila <andrei.botila@....nxp.com>,
	Richard Cochran <richardcochran@...il.com>,
	Andrew Lunn <andrew@...n.ch>
Cc: Simon Horman <horms@...nel.org>,
	Vladimir Oltean <vladimir.oltean@....com>,
	Jacob Keller <jacob.e.keller@...el.com>,
	Kory Maincent <kory.maincent@...tlin.com>,
	bcm-kernel-feedback-list@...adcom.com,
	netdev@...r.kernel.org,
	Vadim Fedorenko <vadim.fedorenko@...ux.dev>
Subject: [PATCH net-next 3/8] net: phy: dp83640: add HW timestamp configuration reporting

The driver stores configuration of TX timestamping and can technically
report it. Patch RX timestamp configuration storage to be more precise
on reporting and add callback to actually report it.

Signed-off-by: Vadim Fedorenko <vadim.fedorenko@...ux.dev>
---
 drivers/net/phy/dp83640.c | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/drivers/net/phy/dp83640.c b/drivers/net/phy/dp83640.c
index f733a8b72d40..b950acc9c49b 100644
--- a/drivers/net/phy/dp83640.c
+++ b/drivers/net/phy/dp83640.c
@@ -1176,6 +1176,18 @@ static irqreturn_t dp83640_handle_interrupt(struct phy_device *phydev)
 	return IRQ_HANDLED;
 }
 
+static int dp83640_hwtstamp_get(struct mii_timestamper *mii_ts,
+				struct kernel_hwtstamp_config *cfg)
+{
+	struct dp83640_private *dp83640 =
+		container_of(mii_ts, struct dp83640_private, mii_ts);
+
+	cfg->rx_filter = dp83640->hwts_rx_en;
+	cfg->tx_type = dp83640->hwts_tx_en;
+
+	return 0;
+}
+
 static int dp83640_hwtstamp_set(struct mii_timestamper *mii_ts,
 				struct kernel_hwtstamp_config *cfg,
 				struct netlink_ext_ack *extack)
@@ -1198,7 +1210,7 @@ static int dp83640_hwtstamp_set(struct mii_timestamper *mii_ts,
 	case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
 	case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
 	case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
-		dp83640->hwts_rx_en = 1;
+		dp83640->hwts_rx_en = HWTSTAMP_FILTER_PTP_V1_L4_EVENT;
 		dp83640->layer = PTP_CLASS_L4;
 		dp83640->version = PTP_CLASS_V1;
 		cfg->rx_filter = HWTSTAMP_FILTER_PTP_V1_L4_EVENT;
@@ -1206,7 +1218,7 @@ static int dp83640_hwtstamp_set(struct mii_timestamper *mii_ts,
 	case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
 	case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
 	case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
-		dp83640->hwts_rx_en = 1;
+		dp83640->hwts_rx_en = HWTSTAMP_FILTER_PTP_V2_L4_EVENT;
 		dp83640->layer = PTP_CLASS_L4;
 		dp83640->version = PTP_CLASS_V2;
 		cfg->rx_filter = HWTSTAMP_FILTER_PTP_V2_L4_EVENT;
@@ -1214,7 +1226,7 @@ static int dp83640_hwtstamp_set(struct mii_timestamper *mii_ts,
 	case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
 	case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
 	case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
-		dp83640->hwts_rx_en = 1;
+		dp83640->hwts_rx_en = HWTSTAMP_FILTER_PTP_V2_L2_EVENT;
 		dp83640->layer = PTP_CLASS_L2;
 		dp83640->version = PTP_CLASS_V2;
 		cfg->rx_filter = HWTSTAMP_FILTER_PTP_V2_L2_EVENT;
@@ -1222,7 +1234,7 @@ static int dp83640_hwtstamp_set(struct mii_timestamper *mii_ts,
 	case HWTSTAMP_FILTER_PTP_V2_EVENT:
 	case HWTSTAMP_FILTER_PTP_V2_SYNC:
 	case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
-		dp83640->hwts_rx_en = 1;
+		dp83640->hwts_rx_en = HWTSTAMP_FILTER_PTP_V2_EVENT;
 		dp83640->layer = PTP_CLASS_L4 | PTP_CLASS_L2;
 		dp83640->version = PTP_CLASS_V2;
 		cfg->rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
@@ -1408,6 +1420,7 @@ static int dp83640_probe(struct phy_device *phydev)
 	dp83640->mii_ts.rxtstamp = dp83640_rxtstamp;
 	dp83640->mii_ts.txtstamp = dp83640_txtstamp;
 	dp83640->mii_ts.hwtstamp_set = dp83640_hwtstamp_set;
+	dp83640->mii_ts.hwtstamp_get = dp83640_hwtstamp_get;
 	dp83640->mii_ts.ts_info  = dp83640_ts_info;
 
 	INIT_DELAYED_WORK(&dp83640->ts_work, rx_timestamp_work);
-- 
2.47.3